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Install Tip: You may be required to reset the vehicle computer after installation of this part.
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Hi, I’m Mike from 1A Auto. We’ve been selling auto parts for over 30 years!
Hey everyone, Sue here at 1A Auto. We've got a '07 Mazda 3 with a 2.0 liter in it, and we're going to show you today how to remove the mass air flow sensor, examine it, and reinstall it. If you need any parts for your car, head on over to 1AAuto.com.
Hood release is located right here. Safety latch is right above the Mazda symbol, right in the center. Just turn it over to the right, and then you have the hood prop rod, and you put it in where the arrow goes and says rod. Right in there and lock it in.
I'm going to remove these three clips. This one will might just be a pull up. It's a body clip. There we go. These plastic clips are just like a little Phillips. Just pull them up a little bit and I can wedge them out with a screwdriver. Set that aside.
Now we're going to remove this right here. Take the cover. Start by removing the tab, and that is a tab that you push down on the back here. You can see the arms push-up and pull on it. Then we have two mounting screws. They're Phillips heads. Just take a Phillips screwdriver and pull that one out. Grab it and twist it. Pull it up. There we have our mass air flow sensor.
To reinstall the mass air flow sensor, reverse the procedure. Make sure there's no dirt or grime in there. Make sure the O-ring is still connected and sealed around. Place it down, and you'll feel it push and grab. Install the two mounting screws. Just a snug down. They're plastic housing. You don't want to strip that. Snug it.
Examine the connector and make sure everything's still there. All the connectors, there's none melted, there's no debris in there, and no oil soaked. Line it up. Push it 'til it clicks. This goes underneath the air box, well first it goes down this way, sorry. Let's see what's happening here. There we go.
So line this plastic piece up. It's got the V shape in it. You're going to line it right up with that indent plastic, and then this side will go inside the battery box on top of the air cover. Then we have the plastic cover over here. There you go.
Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.
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Hey friends, it's Len here at 1A Auto. Today, we're working on our 2011 Mazda three and I want to show you how to replace a mass airflow sensor. If you need this or any other part, you can always check us out at 1aauto.com. Thanks.
Okay, so right here is our mass airflow sensor. This is what meters the amount of air that's going through into our intake and getting burnt up in our engine with the fuel. So, what I like to do is just try to clean it up a little bit around the area. Doesn't have to be anything too special, but if I can at least get off of the majority of the big chunks that are in the generalized area, I'm doing all right.
With that done, there's a little push right here. I'm just going to squeeze it. Give this a little wiggle. Pops right off. We always check our electrical connectors for any funny colors. Rainbow colors inside of electrical connectors are very bad. You don't want any blues, reds, greens. Well, pretty much anything except for metal color. This one looks great. I'll set it aside. We have two Phillips heads that are holding in the mass airflow sensor, so I'm just going to use this. You can use a regular screwdriver with a Phillips head if you want. That's what one of our screws looks like. Screw number two, the exact same thing as the first. Easy peasy. We'll grab this, give it a little wiggle and it pops right up.
Let's move ahead to the next step. Okay, friends, a quick product comparison for you. Over here we have our original mass airflow sensor out of our 2011 Mazda three and over here we have our brand new quality 1A Auto part. Both these pieces are manufactured the exact same specifications. They're both the exact same shape. They have their metering area in there. That senses how much air is flowing by. We have the electrical connector port. You want to make sure you have the same amount of prongs. This one looks perfect. Coming along the top, you can see we have the same two mounting holes. With all that said, I don't see any reason why this wouldn't be a quality part to install into the vehicle, so I'm going to go ahead and do it. If you need this or any other part, you can always check us out at 1aauto.com. Thanks.
Okay. So, we're going to take our brand new quality 1A Auto part mass airflow sensor. It's going to go right in here. Give it a little push, slides right down into its happy place. We've got our two screws. I'm going to get them both started in here before we tighten either of them down. Just see about getting it started. There we are. This one. Okay. They're both started in. I'll make sure I have this thing turned all the way down here. Here we are.
Okay. What we're doing is we're just screwing into plastic here so you don't want to go super tight, but you do want to make sure that you go tight enough to make a good seal on this. You don't want any air getting sucked in past this and not getting metered, getting sucked into the engine. Not only the fact that it's not going to be metered, but also it's not going to be filtered because the air filter's on the other side of it. Okay. So, we'll grab our electrical connector. We already checked it. It looks great. We're going to slide it in and we're going to listen for a click noise. There it is. Nice and locked. Give it a nice little tug. You can't go anywhere. Close the hood, down the road we go.
Thanks for watching. Visit 1AAuto.com, your place for DIY auto repairs for great parts, great service, and more content.
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